* Brent crude price falls to lowest since Nov. 2013
* OPEC output hits five-month high in July - IEA
* No supply disruption yet from Iraq, Ukraine conflicts
(Rewrites, updates prices, adds analyst comment, changes byline, dateline from previous LONDON)
NEW YORK, Aug 12 (Reuters) - Brent crude oil fell to a nine-month low on Tuesday as increased OPEC production helps dampen concerns over potential supply disruptions in Iraq and Libya.
A plunge in German analyst and investor morale to its lowest level in more than 1-1/2 years because of the crisis in Ukraine pressured German shares and fueled worries about demand for petroleum.
September Brent crude was down $1.39 at $103.29 per barrel at 12:00 p.m. (1600 GMT), just above the $103.08 intraday low. That was the lowest price since November 2013.
The contract expires on Thursday.
U.S. September crude was off 72 cents at $97.35 a barrel.
The International Energy Agency (IEA) said that while the situation in several producer countries was "more at risk than ever," supplies were ample and the Atlantic Basin was facing a glut.
OPEC output hit a five-month high of 30.44 million barrels per day (bpd) in July with a 300,000-bpd rise led by Saudi Arabia and Libya, the IEA said.
"In terms of the physical side of things, particularly for Brent, there are pretty high inventories at the Atlantic Basin at the moment and that's holding back gains," said Ankit Pahuja, a commodity strategist at investment bank ANZ.
Production in Iraqi Kurdistan remains largely unaffected and July exports from southern Iraq held at near record levels of around 2.5 million bpd.
Libya's output remains around 450,000 bpd despite clashes between armed factions in Tripoli and Benghazi, a National Oil Company spokesman said on Monday.
The IEA said Libya's output reached 430,000 bpd in July.
U.S. and European Union sanctions on Russia over the crisis in Ukraine have not yet disrupted supply, but the IEA cautioned that the sanctions are expected to trim Russian demand.
"I think the German investor confidence and IEA reports both highlight the recent market theme about demand being challenged," said John Kilduff, partner at Again Capital LLC in New York.
"If Russia makes a move on Ukraine via their latest 'aid' proposal, we have seen that the market will take that badly and sell-off," Kilduff added.
A Russian convoy carrying food, water and other aid set off for eastern Ukraine on Tuesday, but Kiev said it would not allow the vehicles to enter the country.
Oil markets awaited weekly reports on U.S. oil inventories, with data from industry group the American Petroleum Institute (API) set for release later on Tuesday.
U.S. crude oil stocks were forecast to have fallen 2.2 million barrels in the week to Aug. 8, a preliminary Reuters survey of analysts showed.
(Additional reporting by Jason Neely in London and Seng Li Peng in Singapore; Editing by Marguerita Choy)